What Are the Differences Between Air Speed, Air Volume, and Air Pressure?

Sometimes, people comment on an air conditioner that it has high air volume but it's not cold, or it operates loudly but the room temperature decreases slowly, or the air speed is strong but there is no feeling in a distant place.

Behind these experiences, they are related to three conceptions that are easily confused: air speed, air volume, and air pressure. They are at different levels but determine the comfort, air supply distance, and cooling performance at the same time.

 

I. What is air speed? -- the wind that you had experienced

 

Air speed is the velocity of the airflow with the common unit of m/s (meters per second). To put it simply, air speed determines how strong the wind blows on your face when you stand in front of the air outlet.

The higher the air speed, the more significant the feeling of airflow; and the lower the air speed, the smoother the airflow would be. In the air conditioning, a high air speed does not mean quicker cooling; instead, it will form a feeling of direct air flow and produce noise and discomfort.

 

II. What is air volume? -- the key to determine the cooling efficiency

 

Air volume refers to the volume of the supplied air in the unit time with a unit of m³/h or ft³/h (cubic meters per hour, cubic feet per hour). To put it simply, air volume determines how much of the air has been processed and joined in the cooling circle.

The higher the air volume, the quicker the air circulation inside, and the more even the overall temperature will be; on the contrary, the lower the air volume, the less even the temperature will be.

 

III. What is air pressure? -- the ability to supply the air to a distance

 

Air pressure, or static pressure, refers to the ability of the system to overcome the resistance; the unit is Pa. Simply, it determines whether the air would spread to a long distance and across the obstacles with stability.

Air pressure is the key index to the central air conditioners and ducted air conditioners. Insufficient pressure will make the air strong near the vent but weak while far from the vent, and the longer the vent, the worse the cooling performance will be. Sufficient air pressure will provide an even air volume at every vent and supply air stably in the large spaces.

 

 

IV. The relationship between them is not "the bigger the better" but a match

 

There is a common misconception that the stronger the air blow, the better the air conditioner will be. In fact, high air speed with small air volume and low air pressure will only make it cool around the air outlet. Reasonable air speed with high air volume and enough air pressure will make the whole room have an even and comfortable temperature.

 

Item

What it determines

Situation when at a high level
Airspeed The feeling of air (strong/weak) Discomfort, loud noise
Air volume Cooling efficiency High energy consumption
Air pressure Air supply distance Systematic noise and high energy consumption

 

V. Reasons why our air conditioner is not comfortable

 

1. Large room with small air volume: the cooling process is slow and the temperature difference is large.

2. Inadequate static pressure: for the ducted air conditioners, this situation will lead to no wind at the air outlet.

3. Force to increase the air speed: the higher the wind, the louder the noise, and the easier it is to get a headache.

 

VI. How to choose among these parameters?

 

· Wall mounted air conditioner/floor standing air conditioner

Focus on whether the air volume matches with the room size. The wind needs to be smooth instead of being strong.

 

· Ceiling cassette air conditioner/ducted air conditioner/central air conditioner

The air pressure is the key point. Models with multiple vents and long pipes should come with high static features.

 

· Inverter air conditioners

Inverter models are ideal options for various spaces; they can adjust the load automatically, saving energy and providing comfort.

 

We are professional air conditioner manufacturers. For more information on specifications of the air conditioners, please feel free to contact us!

How Mattress Thickness Affects Your Sleep Quality

 

When it comes to choosing a mattress, most people focus on firmness, material, or brand, but overlook a crucial factor that directly impacts sleep quality: thickness. The right mattress thickness doesn’t just determine how “luxurious” your bed feels—it plays a vital role in spinal alignment, pressure relief, and even your ability to get in and out of bed comfortably. Choose too thin, and you’ll feel every bump of the bed frame; opt for too thick, and you might end up with lower back pain from poor support or struggle with mobility. The truth is, there’s no one-size-fits-all thickness—but what if your mattress could adapt to your ideal thickness instead of the other way around? Let’s dive into how mattress thickness shapes your sleep, and how Dreamate’s Custom firmness adjustable home-use mattress innovative design solves the “one-thickness-fits-none” dilemma.

The Science Behind Mattress Thickness and Sleep Comfort

Mattress thickness isn’t just about height—it’s about the balance between support layers and comfort layers. A well-designed mattress uses thickness strategically: the support layer (usually the base) makes up around 50% of the total thickness to keep your spine aligned, while the comfort layer provides pressure relief for shoulders, hips, and knees . The wrong thickness disrupts this balance:
  • Too thin (2–8 inches): Lacks sufficient comfort layer padding, leading to pressure points and discomfort, especially for side sleepers who need extra cushioning for their shoulders and hips . It also fails to insulate against cold from the bed frame, affecting sleep warmth.
  • Too thick (16+ inches): Can cause unstable support if the base layer isn’t sturdy enough. It may also raise the bed height too much, making it hard for people with limited mobility to get in and out. Additionally, excessive thickness can hinder air circulation, leading to moisture buildup and bacterial growth .
  • Ideal thickness (8–14 inches): Works for most adults, but this range still varies by body weight, sleep position, and health needs. For example, side sleepers need 12–14 inches for pressure relief, while stomach sleepers thrive with 8–10 inches to avoid lumbar strain .
The biggest challenge? Couples often have conflicting thickness preferences—one might need a thicker, softer surface, while the other prefers a thinner, firmer feel. This is where Dreamate’s adjustable thickness technology changes the game.

Dreamate: Customize Thickness(and Comfort) to Your Unique Needs

Instead of forcing you to settle for a fixed thickness, Dreamate Spring-free washable functional mattress let you adjust it on demand with our innovative airbag system. But we didn’t stop there—we combined adjustable thickness with three other game-changing features to create a sleep solution that adapts to you, not the other way around:

Airbag-Adjustable Thickness: Your Perfect Height, Anytime

 

Our built-in airbag system lets you tweak the mattress thickness between 8 and 14 inches with a simple remote control. Whether you’re a side sleeper needing 13 inches of cushioning, a back sleeper preferring 11 inches for spinal alignment, or just want a little extra height for easier bed access, you can adjust it in seconds. For couples, this means no more compromise—each side can have its own ideal thickness thanks to our left-right zoning design.

Left-Right Zoning: Personalized Support for Couples

Dreamate’s left-right zoning technology separates the mattress into two independent zones, so you and your partner can adjust not just thickness, but also firmness, without disturbing each other. If you need a thicker, softer surface and your partner prefers a thinner, firmer one, both can get exactly what they need—no more sacrificing sleep for harmony .

Customizable Firmness: Thickness + Firmness = Perfect Sleep

Thickness and firmness go hand in hand, so we made both adjustable. Use the remote to soften or firm up your side of the mattress, even as you adjust the thickness. This level of customization ensures that regardless of your weight (under 130 lbs to over 230 lbs) or sleep position, you’ll get the right balance of support and comfort .

 Fully Machine-Washable: Hygiene Without Hassle

One common downside of thick mattresses is that they’re hard to clean, leading to dust mites, stains, and odors over time . Dreamate Dual-side independent zoning customizable mattress solves this with a fully machine-washable design—simply remove the outer cover and toss it in the washing machine. No more tedious spot-cleaning or expensive professional cleaning services—just fresh, hygienic bedding whenever you need it.

Say Goodbye to "One-Size-Fits-All" Thickness

Your sleep is unique, so your mattress should be too. Fixed-thickness mattresses force you to adapt to their design, but Dreamate’s adjustable airbag system, left-right zoning, and customizable firmness let you create your perfect sleep environment—every night. And with our fully machine-washable feature, you can keep that environment clean and healthy with minimal effort.

Visit Us at Las Vegas Market!

January 25–29, 2026, World Market Center Las Vegas

We’re excited to showcase our innovative adjustable-thickness mattresses at the upcoming Las Vegas Market . This is your chance to experience Dreamate’s customization features firsthand—adjust the thickness, test the firmness zones, and see how our fully machine-washable design works. Our team will be on hand to answer all your questions and help you find the perfect sleep solution for your needs (or your customers’ needs, for B2B partners).
Don’t miss this opportunity to discover the future of personalized sleep. We can’t wait to welcome you to our booth!

How to Stay Warm When Sleeping Outdoors in Cold Weather

portable lightweight camping mattress for hiking

There’s nothing worse than a freezing night of restless sleep while camping—cold temperatures drain your energy, ruin your comfort, and take the joy out of outdoor adventures. Staying warm when sleeping outside isn’t just about thick sleeping bags and thermal layers: the most important piece of your sleep system is your outdoor mattress, and a poor-quality pad will leave you exposed to the cold ground, no matter how well you layer up.

For outdoor enthusiasts, the biggest frustration with cheap mattresses is simple: they fail in extreme temperatures. Thin foam melts and loses shape in summer heat, and rigid synthetic pads turn rock-hard in freezing cold—creating uncomfortable pressure points that let cold seep in and drain your body heat fast.

This is where Dreamate cold weather camping mattress changes the game: our outdoor mattresses are engineered for all-season performance, eco-friendly quality, and unbeatable cold weather warmth.

Quick & Effective Tips to Stay Warm While Sleeping Outdoors

✅ Always sleep on a mattress (never the ground) – The earth absorbs body heat rapidly; a quality mattress creates a critical warm barrier.

✅ Wear moisture-wicking layers (avoid cotton) – Sweat chills you fast in cold air; breathable layers lock in warmth without dampness.

✅ Block wind and drafts – A closed tent or windbreak keeps warm air close, amplifying your mattress’s insulation power.

✅ Choose a temperature-resistant mattress – This is the ultimate hack, and Dreamate delivers this better than any other outdoor mattress on the market.

Your Cold Weather Warmth Essential

 

Dreamate all season outdoor mattress are designed to solve the problem for cold weather campers: temperature-induced compromise. Our core promise to you:

✅ No melting, no rock-hard rigidity – Our premium high-density foam blend retains its perfect supportive softness in ALL temperatures, from scorching summer days to freezing winter nights. No stiff, brittle padding in the cold, no melted, misshapen foam in the heat—just consistent comfort, always.

✅ Superior insulation for cold sleep – Our foam traps warm air close to your body, creating a thermal buffer that stops heat loss to the cold ground. You stay cozy and warm, even in subfreezing temps, with no cold pressure points to break your insulation layer.

✅ 100% Eco-friendly, non-toxic materials – No harsh chemicals, no off-gassing, no harmful fillers. Our sustainable foam is certified safe, mold/mildew resistant, and built to last—caring for the planet while keeping you comfortable.

✅ Lightweight & portable – Premium durability and warmth, with no bulky weight to slow you down on hikes and camping trips.

Warm up

Staying warm outdoors in cold weather is easy when you have the right gear—and a Dreamate eco friendly camping mattress is the foundation of a warm, restful night’s sleep. No more shivering on rigid, cold pads, no more replacing melted foam mattresses every season. Just sustainable, temperature-resistant comfort that keeps you warm in winter, cool in summer, and ready for every outdoor adventure.

Dreamate: Warmth, durability, and eco-conscious design—for the outdoor lover who refuses to compromise.

Smart Bidet Toilet Seats Eco-Conscious Innovation Meets Smart Hygiene – Your Ideal Solution for Homes & Businesses

smart toilet seat

In today's fast-paced world, bathrooms are no longer just functional spaces—they're a reflection of our commitment to comfort, hygiene, and environmental responsibility. Whether you're a homeowner upgrading your living space, a property developer curating premium amenities, or a bathroom contractor seeking reliable, client-pleasing products, the demand for solutions that blend innovation, sustainability, and practicality has never been higher. This is where Oceanwell's Smart Bidet Toilet Seats shine: merging eco-conscious design with cutting-edge smart hygiene technology to redefine what a modern bathroom fixture can be.


The Rise of Eco-Smart Bathroom Fixtures: Why It Matters


As global awareness of environmental issues grows, “green” has become a non-negotiable factor for both residential and commercial buyers. Water scarcity, plastic waste, and carbon footprints are top of mind, while the need for enhanced hygiene—amplified by post-pandemic priorities—remains a key concern. Traditional bathroom fixtures often fall short: excessive water usage, harsh cleaning chemicals, and limited functionality leave gaps that modern consumers refuse to tolerate.


Oceanwell's Smart Bidet Toilet Seats address these pain points head-on, proving that sustainability and luxury don't have to be mutually exclusive. By combining water-saving technology, durable eco-friendly materials, and intelligent hygiene features, we've created a product that caters to the needs of today's discerning users—while aligning with global efforts to build a greener future.

heated seat smart bidet toilet

What Makes Oceanwell's Smart Bidet Toilet Seats Stand Out?


1. Water-Saving Technology: Gentle on the Planet, Powerful in Performance

One of the biggest advantages of our smart bidet toilet seats is their exceptional water efficiency. Equipped with precision-controlled spray systems, they use up to 80% less water compared to traditional toilet paper and conventional bidets. The adjustable water pressure and temperature settings ensure a comfortable, thorough clean without waste, making them an ideal choice for eco-conscious homes and water-conscious businesses (such as hotels, offices, and senior care facilities). This not only reduces utility bills but also minimizes your environmental impact—all while delivering superior hygiene.


2. Intelligent Hygiene Features: Elevate Comfort & Cleanliness

Hygiene is at the core of our design. Our smart bidet seats come with a range of user-centric features that transform daily use into a spa-like experience:

•Dual Nozzle System: Separate nozzles for posterior and feminine cleaning, with self-sterilization technology to prevent bacterial growth.

•Heated Seat & Drying Function: Adjustable temperature settings for the seat and air dryer eliminate the need for toilet paper, reducing waste and enhancing comfort—especially in cold climates.

•Intuitive Remote Control: A user-friendly remote allows for effortless operation of all functions, from adjusting water pressure and temperature to activating the dryer, ensuring a personalized and hygienic experience for every user.

•Eco-Friendly Power Saving Mode: When not in use, the smart bidet seat enters a low-power standby mode, minimizing energy consumption without compromising on performance or hygiene standards.


3. Sustainable Materials & Durability: Built to Last, Kind to the Earth

We believe sustainability extends beyond water usage—it starts with the materials we choose. Oceanwell's smart bidet toilet seats are crafted from high-quality material, ensuring long-term durability even in high-traffic commercial settings. Our products are designed to withstand frequent use without compromising performance, reducing the need for replacements. Additionally, all our smart bidet seats are CE-certified, meeting strict European safety and environmental standards.

new design wc smart toilet seat

Partner with Oceanwell: Your Trusted Provider of Customized Bathroom Solutions


For over 20 years, Oceanwell has been a leader in the global bathroom fixture industry, serving brands, retailers, contractors, and distributors worldwide. We understand that every project is unique, which is why we offer flexible OEM/ODM services to tailor our smart bidet toilet seats to your specific needs. Whether you require custom designs, branding, or technical modifications, our team of experts will work closely with you to deliver products that align with your vision and exceed your clients' expectations.

Our commitment to quality, sustainability, and innovation has made us the preferred partner for businesses seeking reliable, high-performance bathroom solutions. From residential projects to large-scale commercial developments (such as hotels, hospitals, and senior living communities), our smart bidet toilet seats have proven to enhance user satisfaction, reduce operational costs, and elevate the overall value of the space.


Ready to Upgrade Your Bathroom with Eco-Smart Innovation?


Whether you're a homeowner looking to add comfort and sustainability to your daily routine, or a business owner seeking to differentiate your project with premium, eco-friendly fixtures, Oceanwell's Smart Bidet Toilet Seats are the perfect choice. Contact our team today to learn more about our products, OEM/ODM services, and global distribution capabilities. Let's work together to create bathrooms that are not only functional and stylish but also kind to the planet—one smart bidet seat at a time.

Does the Set Temperature Equal the Actual Indoor Temperature?

Many people have the experience when using the air conditioner that we set a temperature at 26℃, but the room temperature is still not comfortable. Is that the error of the sensor or the air conditioner itself?

The answer is that when the air conditioner is set to a temperature, it does not mean the temperature at every corner of the room. We are going to explain it clearly based on its mechanism.

 

I. What exactly does the "set temperature" of an air conditioner measure?

 

The air conditioner does not measure the whole room temperature, but it determines whether it needs continuous cool or heat by the sensor.

In most of the wall mounted air conditioners or floor standing air conditioners, the temperature sensor is normally located near the air inlet of the indoor unit or inside the air inlet zone, which measures the air temperature near the air conditioner. This means that whether the air is conditioned to 26℃ or not depends not on the position where you are but on the area around the air conditioner.

 

wall mounted air conditioners

 

II. Why are there different temperatures in the same room at the same time?

 

The temperature is not completely uniform even in the same room. There are factors that influence it: 

 

1. Air stratification

 

The cold air has high density, which tends to sink, while the hot air has a low density and tends to rise. As a result, the space that is close to the ground is colder, and the space that is close to the ceiling is hotter. That's why some feel cold on the feet and hot on the head and feel uncomfortable. With an air conditioner operating, people still feel uncomfortable.

 

2. Building structure and insulation conditions

 

West-facing walls, glass windows → continuous heat taken in

Wide room space, high floor height → stronger thermal inertia

Leakage in door gaps and window gaps → Continuous coolness loss

All these will mislead the air conditioner to regard the cooling procedure as having reached the setting temperature, but the whole room is not truly stable.

 

3. The relation between airflow and the human body position

 

Direct air blow → More cooling;

Back-wind zone or corners → Higher temperature;

At the same 26℃, people sitting beneath the air outlet will feel cold, while those sitting at the corner will feel hot.

 

III. Why is 26°C sometimes still cold?

 

This is a common misconception among many people. Actually, the air conditioner is working between a temperature range instead of pursuing 26℃.

For example, the setting temperature is 26℃, but the actual control range is 25℃ to 27℃. When the sensor detects the temperature lower than the limit (here 25℃), the compressor will slow its speed or stop working; when higher than the limit (here 27℃), the compressor will start to work again.

If at this time, you sit near the direct air blow area or around the sensor, you will feel colder but with a not-so-low temperature setting.

 

IV. Why do the inverter air conditioners seem more stable?

 

Compared with normal non-inverter air conditioners, the advantages of the inverter air conditioners lie in the following facts:

 

· The compressor speed is continuously adjustable;

· The temperature fluctuation is lower;

· The indoor airflow is more smooth and comfortable;

 

This doesn't mean the inverter air conditioners measure the temperature more precisely, but when the air reaches the setting temperature, it works at a low power continuously instead of stopping working. Finally the indoor temperature becomes more uniform, and the experience of the human body is more comfortable.

 

V. How to adjust the room temperature more reasonably?

 

Instead of struggling over whether the temperature is precisely measured or not, we'd better focus on the comfort and the power consumption.

 

Common advice:

· Summer cooling temperature: 26-28℃;

· Adopt with wind speed adjustment instead of lowering the temperature blindly;

· Avoid long-time direct air blow;

· Slightly close the window, curtains, and doors when there is poor tightness in the room;

 

Noted: The air conditioner is to remove excessive heat, not to "create low temperature".

Smart Toilet Seats Functions, Value, Definitions & Usage Guide

In recent years, smart toilet seats have gradually become a staple in modern households, blending technology with daily hygiene to enhance the quality of life. Many people, however, still have questions about their functions, value, definitions, and usage. This article will comprehensively answer these key questions to help you better understand and choose smart toilet seats.

electric toilet seat

1. What Does a Smart Toilet Seat Do?

A smart toilet seat is far more functional than a traditional toilet seat, integrating multiple intelligent features to optimize the toilet experience and improve hygiene. Its core functions include:

•Warm Water Cleaning: This is the most basic and essential function. It usually offers adjustable water temperature (ranging from 30°C to 40°C), water pressure, and cleaning modes (such as front cleaning for women, rear cleaning, and mobile cleaning). The warm water can effectively clean the private area without relying on toilet paper, reducing irritation and improving hygiene.

•Heated Seat: The seat temperature is adjustable, which is particularly useful in cold seasons. It eliminates the discomfort of sitting on a cold seat, providing a warm and comfortable experience.

•Automatic Flushing: Many smart toilet seats are equipped with motion sensors or pressure sensors. They can automatically flush after use, avoiding the need to touch the flush button and reducing the spread of bacteria.

•Air Drying: After cleaning with warm water, the air drying function uses warm air to dry the private area, further reducing the use of toilet paper and being more environmentally friendly.

•Deodorization: Built-in deodorizing fans can quickly absorb and filter odors during and after use, keeping the bathroom air fresh.

•Automatic Lid Lifting/Lowering: Some high-end models have infrared sensors. When a user approaches, the lid automatically lifts; when the user leaves, the lid automatically lowers and flushes, fully realizing hands-free operation.

•Child Mode/Elderly Mode: Specially designed modes with lower water pressure and appropriate temperature to meet the needs of children and the elderly, ensuring safety and comfort.

smart toilet seat

2. Are Smart Toilet Seats Worth It?

Whether a smart toilet seat is worth buying depends on individual needs, living habits, and budget, but overall, it offers significant value for most households, mainly reflected in the following aspects:

•Improved Hygiene: Traditional toilet paper can only wipe the surface and may leave residues, while warm water cleaning is more thorough. It also reduces direct contact with bacteria, which is especially beneficial for women (during menstruation and pregnancy), the elderly, and people with hemorrhoids.

•Enhanced Comfort: Heated seats, warm water cleaning, and air drying solve the discomfort of using the toilet in cold weather and the irritation caused by toilet paper, greatly improving the toilet experience.

•Convenience and Intelligence: Hands-free functions such as automatic lid lifting, automatic flushing, and remote control (via a panel or mobile app) make use more convenient, especially for people with limited mobility.

•Long-Term Cost-Effectiveness: Although the initial purchase cost of a smart toilet seat is higher than that of a traditional one, it reduces the long-term consumption of toilet paper. For households that pay attention to hygiene and comfort, the investment is worthwhile.

Of course, if you have a very limited budget or rarely use the toilet at home, a traditional toilet seat may be sufficient. But for most families pursuing a high-quality life, a smart toilet seat is a worthwhile investment.

intelligent toilet seat

3. What Is an Automatic Toilet Seat?

An automatic toilet seat is a type of smart toilet seat that focuses on "automatic operation" to realize hands-free use. It is a subset of smart toilet seats, with the core feature of using sensors (infrared, pressure, etc.) to replace manual operations.


Common automatic functions include automatic lid lifting/lowering, automatic flushing, and automatic cleaning. For example, when you approach the toilet, the infrared sensor detects your presence and automatically lifts the lid; after you finish using the toilet and leave, the sensor detects that you have left and automatically lowers the lid and flushes. Some advanced automatic toilet seats can also automatically adjust the water temperature and pressure according to the user's habits.


It should be noted that not all smart toilet seats are automatic. Some basic smart toilet seats only have functions such as warm water cleaning and heated seats, and require manual operation (such as pressing buttons to start cleaning). Automatic toilet seats are usually at a higher price point due to the addition of sensor technology.


4. How to Use a Smart Toilet Seat?

The use of a smart toilet seat is relatively simple, and the specific steps may vary slightly depending on the model, but the general process is as follows:

Step 1: Install and Connect Power

First, ensure that the smart toilet seat is correctly installed on the toilet (it is recommended to be installed by professional personnel). Then, connect the power supply—most smart toilet seats use a 220V power supply, and some have a built-in battery for wireless use. After connecting the power, turn on the main switch.

Step 2: Familiarize with the Control Panel

The control panel is usually located on the side of the toilet seat or comes with a remote control. The panel is marked with icons or text for various functions, such as "warm water cleaning", "heated seat", "air drying", "flushing", etc. Familiarize yourself with the function of each button first.

Step 3: Basic Use Process

•When using the toilet, if it is an automatic model, the lid will lift automatically when you approach; if it is a manual model, you can lift the lid manually.

•After sitting down, you can adjust the temperature of the heated seat through the control panel (usually 3 levels: low, medium, high).

•After using the toilet, press the "warm water cleaning" button, select the appropriate cleaning mode (front/rear/mobile), and adjust the water temperature and pressure according to your needs.

•After cleaning, press the "air drying" button to dry the private area. You can also adjust the temperature of the drying air.

•After finishing, if it is an automatic model, it will flush and lower the lid automatically when you leave; if it is a manual model, press the "flushing" button to flush, then lower the lid manually.

Step 4: Daily Maintenance

When cleaning the smart toilet seat, avoid using corrosive cleaners (such as bleach) and do not spray water directly on the control panel or power interface to prevent short circuits. Regularly check the water inlet pipe for blockages and clean the nozzle (some models have an automatic nozzle cleaning function).


Conclusion

Smart toilet seats, with their rich functions, bring a more hygienic, comfortable, and convenient toilet experience to households. Automatic toilet seats, as a high-end type of smart toilet seats, further enhance the intelligence of use through sensor technology. Whether they are worth buying depends on individual needs, but for most families, they are a valuable upgrade to the quality of life. By mastering the correct usage methods and doing a good job in daily maintenance, you can make full use of the advantages of smart toilet seats and enjoy a better life.

What Is "Thermal Inertia"? Why Is It Harder to Cool Down A Larger House?

Most of us have the experience that a small room could be cooled down in several minutes, but for a larger space, the temperature decreases slowly even though the air conditioner has been operating for a long time. It doesn't mean the air conditioner has not enough cooling ability; instead, a most important physical concept contributed to the situation—thermal inertia, which is often being omitted.

 

I. What's thermal inertia?

 

Thermal inertia is the insensitivity level of an object or space to the temperature exchanges. Simply, it means the higher the thermal inertia, the slower the temperature exchanges; and the lower the thermal inertia, the faster the temperature exchanges.

 

It is not simple data, which is determined by three factors: mass, specific heat capacity, and the heat exchange conditions.

Inside the buildings and rooms, the thermal inertia performs mainly in walls, ceilings, floors, appliances, and the air itself. All those items will store heat.

 

II. Why does a larger house have a higher thermal inertia?

 

1. More items which store heat in the house

 

The larger house has wider wall areas, larger air volume, more concrete and bricks used in construction, and more space to put appliances and decorations. These are all heat storages. When the outside temperature is high, those heat storages have absorbed much heat already.

 

2. Air conditioning is to remove heat first, not to lower the temperature

 

The core task of air conditioners is not to blow cold air but to remove the heat from indoors to the outdoors steadily.

In large spaces, the air conditioner needs to remove heat from walls, floors, appliances, and the air steadily. The larger the space, the more heat needed to be removed, so it took a longer time.

 

3. The surface temperature determines the body temperature

 

Though the temperature had been cooled down, if the wall is hot, the floor is hot, and the appliance surface is hot, according to reflection heat transfer, the human body will feel its heat as well.

That's why people still don't feel cool even though the temperature already shows 24℃ in the large house. Thermal inertia makes it much slower for people to get "real coolness."

 

 

III. Why it may not necessarily solve the issue by purchasing a larger capacity cooling device?

 

Most people will choose a larger capacity air conditioner to cool a large house, such as a floor standing air conditioner or a cassette air conditioner. But the common questions are unreasonable gas-liquid distribution, cold air cannot reach the areas with heat burden, unreasonable air-return design, and long-term stays of heat in a partial area. As a result, the energy consumption rises, but the comfort has no significant improvement.

 

IV. For cooling in the large spaces, the key is to deal with the thermal inertia

 

1. Start the air conditioner in advance, rather than operating it when it's hot

2. Focus on the airflow coverage, rather than the cooling capacity

3. Zoning control, separately dealing with the thermal inertia

4. Matching the air conditioning systematically rather than focusing on the unit datas

 

In large houses, villas, and commercial spaces, VRF, ducted air conditioners, and joint-combined systems are more suitable in both comfort and energy savings.

 

In the large houses, it's not harder to blow cold air but to remove more heat, which is the thermal inertia that influences it. What determines the comfort is not only how big the air conditioner is, but also whether the whole system is recognized and allowed to operate by following the physical rules.

What Are "Return Air" and "Fresh Air"? Why Can't A Regular Air Conditioner Be Used As A Fresh Air System?

When selecting or installing air conditioners, many people will hear two words, "return air" and "fresh air". But a more common question is, "As it blows air all the time, can an air conditioner supply the fresh air to the inside like a fresh-air machine?"

 

The answer is absolutely not; most of the traditional air conditioners do not equal a fresh air machine. To understand the reason, we must know the basic distinctions between "return air" and "fresh air".

 

I. Return air—A systematic indoor air-circulation

 

Return air means there already exists air in the room; it is taken in and processed by the air conditioner and then returned to the room.

 

The whole process is indoor air → being taken into the air inlet → passing through the filter → passing through the evaporator (cooling/heating) → blowing out from the air outlet.

 

It features a source of air from indoors, a function of temperature adjustment, and a characteristic of hermetic or semi-hermetic circulation.

 

The function of return air lies in the improvement of cooling and heating efficiency, the reduction of energy consumption (no need to cool the new air), and the even coverage of the room temperature. It stresses whether cooling and heating are comfortable rather than whether the air is fresh or not.

 

II. Fresh air--- A true replenishment of outdoor air

 

Fresh air means supplying air from the outdoors to indoors, in which the air has been filtered and processed.

The whole process is outdoor air → air inlet → multiple filters (dust-proof, PM2.5, pollen, etc.) → heat recycle/cold recycle → fresh air supply to the indoors → dirty air exhaust to the outdoors in the meantime.

It features a source of air from outdoors, a purpose of replenishing oxygen and diluting the dirty air, and a nature of air exchange.

The fresh air can solve many health problems of the room, such as a high concentration of carbon dioxide, strange smells, formaldehyde, VOC, dirty air caused by long-term closed windows, and the lack of oxygen in confined spaces.

 

 

III. Why can't traditional air conditioners be used as fresh air machines?

 

1. Traditional air conditioners have no air inlet design from the outdoors

 

Wall mounted air conditioners and floor standing air conditioners—their indoor units do not contact the air outside. The air inlet and air outlet are all inside of the room. The outdoor units are only responsible for heat dissipation.

The new air didn't come in, and the air just circulates inside.

 

2. Air-conditioned wind is not same with fresh air

 

Some people believe that it seems the air is fresh when the air conditioner is turned on and the air flows. But in fact, only the air circulates; the content of oxygen does not increase, and carbon dioxide and strange smells accumulate in the room continuously.

That's why people will get tired and have headaches in the air-conditioned room for a long time, and offices need to open the window regularly or install a fresh air system.

 

3. Traditional air conditioners don't have filtration and protections that a fresh-air system requires

 

A true fresh-air system needs high-efficiency filtration (dust-proof, PM2.5, pollen, etc.), anti-condensation, anti-backflow design, and pressure control between indoor and outdoor.

Traditional air conditioners have a filter, but it is only used for dust-proofing, which cannot process the outdoor polluted air directly. If we insist on supplying the air from the outside, it may lead to condensation, a surge in energy consumption, and even malfunctions.

 

IV. Is there a win-win plan that covers air conditioning and fresh air needs?

 

The answer is YES, but they are not traditional air conditioners. Here are applicable solutions:

 

· Air conditioner + individual fresh-air system (Common and stable plan);

· Central air conditioning/ducted air conditioning with fresh air function;

· Full heat exchange fresh air + air conditioning system.

 

Those systems had taken into consideration fresh air volume, energy consumption balance, and heat/cool compensation during the designing process.

 

Wall Mounted Air Conditioner

 

V. In which conditions should we choose a fresh-air system

 

If you meet the following situations, a fresh-air system is not optional but a must.

 

· Long-term hermetic spaces (closed windows)

· Offices, hotels, apartments

· Live with the elderly, kids, and pregnant women.

· High pursuit of the air quality (allergies, dust, formaldehyde)

 

The core task of the air conditioners is to adjust the room temperature, while the fresh-air system is to refresh the air. They are not in a relation of replacement but of complementarity. If you only install the air conditioner, your room will be cool and heated, but if you have a fresh-air system at the same time, your room will be alive.

Oceanwell E580 Smart Bidet Redefining Innovation in Line with Global Trends

The global smart toilet seat market is witnessing steady growth driven by rising hygiene awareness, smart home adoption, and evolving consumer demands for convenience. According to a comprehensive report by Data Bridge Market Research, the market was valued at USD 725.48 million in 2021 and is projected to reach USD 955.32 million by 2029, boasting a compound annual growth rate (CAGR) of 3.50% during the forecast period (2022–2029). Against this backdrop, Oceanwell's launch of its new smart toilet seat E580 emerges as a timely innovation that perfectly aligns with key market trends and consumer needs.


Global Market Dynamics: Why Smart Toilet Seats Are Gaining Traction

Data Bridge's research highlights three core drivers propelling market growth:

1.Heightened Hygiene Awareness: Especially in developing regions, initiatives to improve residential and commercial sanitation have boosted demand for smart hygiene solutions.

2.Smart Home & Commercial Construction Boom: Modern home trends and rapid commercial building development have increased the adoption of intelligent bathroom fixtures.

3.Rising Disposable Incomes: Economic growth in Asia-Pacific and other regions has elevated living standards, making premium smart toilet seats more accessible to consumers.


Additionally, the market's segmentation by function—including cleaning, night lights, heated seats, and deodorization—reflects what consumers prioritize most. Oceanwell's E580 directly addresses these demands with its all-in-one design.

electronic bidet toilet seat

Oceanwell E580: A Product Tailored to Market Needs

The E580 stands out for its user-centric features and technical prowess, perfectly matching the market's functional and performance expectations:

Multi-Mode Hygienic Cleaning: Equipped with feminine wash, gentle wash, antibacterial wash, and pulse wash, with 5-level adjustable water pressure and temperature. This aligns with the "cleaning" function segment, which is a key market driver.

Comfort-Centric Add-Ons: Adjustable warm air drying, a heated seat (31–39℃), and a built-in night light—all top-requested features in Data Bridge's function segmentation. The self-cleaning/manual-clean nozzles further enhance hygiene, a core consumer concern.

Reliable Technical Specifications: With a 1600W power output, AC220V~50/60Hz voltage, and IPX4 waterproof rating, the E580 meets global safety and performance standards, making it suitable for both residential and commercial end-users (two major market segments identified in the report).


Regional Alignment: Tapping Into High-Growth Markets

Data Bridge notes that Europe currently dominates the global market, while Asia-Pacific is poised for robust growth due to rising disposable incomes and population expansion. As a China-based OEM&ODM manufacturer and B2B trader, Oceanwell has strategically positioned the E580 as a cost-effective alternative in the higher-priced smart toilet seat segment, tailored to tap into the booming market.


Future Outlook: Riding the Wave of Smart Innovation

The report emphasizes that "wider application of smart technology" and "government initiatives for water conservation" are key market opportunities. While the market faces challenges like higher costs compared to traditional toilet seats, the E580's balanced combination of functionality and value positions it well to overcome such barriers.


Citation Sources

1. Data Bridge Market Research. (2022). Global Smart Toilet Seat Market - Industry Trends and Forecast to 2029.

https://www.databridgemarketresearch.com/zh/reports/global-smart-toilet-seat-market


2. Oceanwell Electric Smart Bidet Toilet Seat E580.

https://www.oceanwellxm.cn/oceanwell-electric-smart-bidet-toilet-seat-with-dryer-and-night-light_p355.html


#electronic toilet    #seat smart toilette   #smart toilet seat manufacturer  # heated seat   #electric bidet   #smart bidet toilet seat  #intelligent toilet seat   #elongated toilet bidet




5 Compelling Reasons to Choose Oceanwell Smart Toilets

5 Compelling Reasons to Choose Oceanwell Smart Toilets

As smart home technology reshapes daily living, smart toilets have evolved from luxury upgrades to bathroom essentials—redefining hygiene, comfort, and convenience. Oceanwell's smart toilet range, headlined by the E410 wall-hung model, embodies the core advantages of this innovation, aligning with the industry's top priorities for modern bathroom solutions. Here are five key reasons to make Oceanwell your go-to for a smarter bathroom experience.


1. Personalised Hygiene

Gone are one-size-fits-all cleansing routines. Oceanwell smart toilets offer fully customisable wash and dry functions: adjust water temperature (5 levels, including OFF), pressure (350–650mL/min), and nozzle position (5-step adjustment) via the D81-01 remote or side buttons. The E410 also features pulsating and oscillating massage modes, while its warm-air drying system replaces traditional toilet paper for a gentle, hygienic finish—catering to every user's unique needs.

heated seat smart bidet


2. Next-Level Bathroom Cleanliness

Oceanwell prioritises a germ-free space with multi-layer hygiene features. The E410's nozzle self-cleans before and after each use, and optional UV sterilisation. Its rimless design eradicates hidden dirt pockets, paired with non-porous ceramic glaze that resists stains and bacterial buildup. These innovations ensure your toilet stays pristine with minimal effort.

smart bidet


3. Intuitive Smart Home Integration

While compact in its smart connectivity, Oceanwell's design balances practicality with smart control. The D81-01 remote supports one-to-one pairing to avoid cross-interference in multi-toilet spaces. For added convenience, the toilet's standby mode reduces energy use, aligning with sustainable smart home goals.

smart toilet with remote control


4. Unmatched Comfort & Convenience

Oceanwell smart toilets turn daily routines into luxurious moments. The E410's optional heated seat (29–37℃ adjustable) eliminates cold discomfort, while its soft-close seat and cover prevent noisy slams. A built-in night light provides gentle illumination for late-night visits, and smart controls minimise touchpoints—combining ease of use with thoughtful comfort.

night light shower toilet


5. Perfect for Every Space & User

Designed for versatility, Oceanwell's flagship E410 is a wall-hung model that frees up floor space, ideal for small bathrooms or minimalist interiors. For those seeking a balance of innovation and practicality, it adapts seamlessly to residential and light commercial spaces alike.

wall hung smart toilet


Oceanwell's smart toilets aren't just fixtures—they're investments in a cleaner, more comfortable, and personalised bathroom experience, crafted to meet the diverse needs of modern households.